Dietmar Hamann has stated on social networking site Twitter that Liverpool duo Roberto Firmino and Christian Benteke need to do more.
Firmino and Benteke joined the Merseyside outfit from Hoffenheim and Aston Villa respectively in the summer of 2015.
Former Liverpool midfielder Hamann has claimed that both the players must contribute more.
Very good but once a month not enough https://t.co/6z9iEKSKhC— Didi Hamann (@DietmarHamann) January 14, 2016
Wasn't a great assist he just headed it where he had to. I like him but got to do more https://t.co/8HuPctXOUZ— Didi Hamann (@DietmarHamann) January 14, 2016
Firmino is a 24-year-old Brazil international who can play as an attacking midfielder, a forward or as a winger.
The former Figueirense attacker has scored three goals and created 23 chances in 18 Premier League appearances so far this season.
Benteke, a 25-year-old Belgium international striker, has scored six goals and created 20 chances in 18 league games this campaign.
Liverpool are ninth in the Premier League table at the moment with 31 points from 21 matches.
Jurgen Klopp’s side are five points behind Tottenham Hotspur, who are currently fourth and occupy the final Champions League spot.
The Reds will face Manchester United at Anfield in the Premier League on Sunday afternoon.